Answer: 1/5, 1/2, 0.
Step-by-step explanation:
given data:
no of cameras = 6
no of cameras defective = 3
no of cameras selected = 2
Let p(t):=P(X=t)
p(2)=m/n,
m=binomial(3,2)=3!/2!= 3
n=binomial(6,2)=6!/2!/4! = 15
p(3)= 3/15
= 1/5.
p(1)=m/n,
m=binomial(6,1)*binomial(2,2)=6!/1!/4!*2!/2!/0!= 7.5
n=binomial(6,2)= 15
p(2)= 7.5/15
= 1/2
p(0)=m/n,
m=0
p(0)=0
Answer:
16
Step-by-step explanation:
16
4 because 6(4) = 24 and 24-3=21
<u>To find the area of the circle</u>:
⇒ need to know the formula: 
- r: radius or half of diameter's length ⇒ 7 meters
<u>Let's calculate:</u>

<u>The problem asks us to round to the nearest hundreth</u>:

<u>Answer:</u> 
Hope that helps!
Answer:
72
Step-by-step explanation:
<u>Given:</u>
There were 120 people in total.
60% were parents.
<u>To find:</u>
Number of parents attended.
Solution:
1. 60% of 120
It can also be written as:

Simplify

- Divide by common factor (2)

2. 
Multiply

Divide

Therefore, 72 parents attended the game.